Apparatus for distilling wood



(No Model.) 2 Sheets-Sheet 1.

J. WILSON.

APPARATUS FOR DISTILLING WOOD.

No. 375,908. Patented Jan. 8, 1888.

WITNESSES Y W x; M

INVENTOR A TTORNEY N. Psvcrcs. Phmunhc w. Washinglan. o. c.

UNITED STATES PATENT OFFICE.

JOHN \VILSON, OF NEW YORK, N. Y., ASSIGNOR TO THE AMERICAN AOETIO ACIDCOMPANY, OF JERSEY CITY, NEW JERSEY.

APPARATUS FOR DISTILLING WOOD.

SPECIFICATION forming part of Letters Patent No. 375,908 dated January3, 1888.

Applicati n filcl June 30, 1887.

T aZZ whom it may concern.-

Beit known that 1, JOHN VILSON, acitizen of the United States, residingat New York city, in the county of New York and State of New York, haveinvented certain new'and use ful Improvements in Ovens or Retorts forthe Manufacture of Acid from \Vood; and I do declare the following to bea full, clear, and exact description of t-heinvention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

My invention consists, essentially, in improved contrivances of thewrought-iron ovens employed for the distillation of wood, and in themeans for applying the heat, as hereinafter fully described, referencebeing made to the accompanying drawings, in which- Figure 1 isalongitudinal sectional elevation through a still contrived according tomy invention. Fig. 2 is a horizontal section of the same. Fig. 3 is anend elevation, with a 2 part broken out, showing an arrangement of aseries'of ovens in an economical plan of construction, together with anindependent furfor convenience in cleaning the coil-from time nace foreach oven.

I make wrought-iron ovens a, with suitable enveloping briclbwork, b, andfoundation 0 for support, and for economy of heat, with a door, d, atone end, and rails 6, suitable for the introduction and removal of thewood in carsf, as is commonly done in other stills for the production ofwood acids.

One of the distinctive features of my improved oven is a contrivance forthe better and more economical disposition of the heavy liquid productsthan as in the present stills, by the use of cars having open racks forthe escape of said products to the bottom of the ovens and conductorsb,applied to the ovens for the discharge of the same into other stillsor receptacles, as required, with a branch, 0, connected to the upperoutlet for the escape of any vapors, and a trap, d, for the liquidproducts, whereby these products, commonly allowed to deposit on thebottom of the oven and requiring to be scraped off, may be taken offwith much less labor and trouble, and at once turned to account byfurther treatment.

Serial No. 243,026. (No model.)

Another of the features of my invention consists of the contrivance ofthe horizontal coil 9 of heat-fines for the application of the heat froma furnace, I1, below or in any approved locat-ion,to which said coil isconnected, preferably through the front plate, 2, below the door (I; oritmay be through the back plate by the inlet-pipe j; and the coil isprovided with a discharge-pipe, k, for the escape 6 of the Waste heat,with a regulating-valve, Z, to regulate the draft, which also connectswith the coil through the front plate, i, below the door, and the inletand discharge pipes are connected with said plate by check nuts or 6collars m, that screw 011 the pipes, one each side of the plate, andclamp it in substantial connection therewith, and the coil rests onrollers n, so that being stayed by the front plate only, and also beingfree to shift on said rollers by expansion and contraction, the coil isrelieved of all strains tending to open the joints or other places, orto strain the front plate out of place.

The coil is made with plugged openings 0 to the longitudinal members,and the front and back plates are made with coincident open ings p, andwill have suitable covers therefor luting the joint air-tight when thedoor is closed.

I make the pipe a leading to the main condenser (not shown) with abranch, a, connected with an alcohol-columnw, and another branch,

w, to a chamber for the manufacture oface- 0 t-ates, and with suitablecocks, m y z, for causing the vapors to flow into one or the other ofsaid receptacles, as required.

The object of the alcohol-column is to condense the vapors of thewood-alcohol, which 5 are the first to come over. The alcohol-column isto be shut off when the acetic vapors come over, and they are to beturned into the main condenser.

In the construction of my improved still I Ice make a series of ovens,a, in one still,with one inclosure of brick, and economize in the quan=plication for a patent.

tity of metal employed for the ovens by so building them together that asingle partition, a, serves for the side of two adjoining ovens.

This construction will also apply in case it may be desired to arrangetwo series conneoted back to back. I reserve the open car inwood-distilling apparatus fora separate ap- For each oven I provide aseparate furnace, h, to enable the ovens to be fired separately, sothatone or more may be firing while others are being emptied andrefilled.

What I claim, and desire to secure by Letters Patent, is

1. The combination, in a wood still, of the brick-inclosed metallic ovena, car-track e to and within the oven, the open or rack box Wood-holding car, conductor 1) for the discharge of the heavy products, thealcoholcolumn, and the gas conducting pipe u to the main condenser, saidpipe having branch 1), connected with the alcohol-column, and alsohaving the branch 20, and regulating cocks :0 y z, substantially asdescribed.

2. The combination, with the metallic oven for distilling wood, of thehorizontal coilheating flue connected through the front plate of theoven with the inlet-pipe from the furnace, and with the waste-heat flue,the checknuts clamping said coils to the frontplate, and the rollerssupporting the coils, substantially as described.

3. The combination, in a wood-still, of the metallic oven havingperforated end plates, and the horizontal heating-coil having pluggedopenings to the horizontal members coincident with said perforations,substantially as described.

4. The combination, in a wood-still, of the metallic oven having apermanent front plate below the door, the horizontal coil-heating fiueconnected With inlet and waste heat fines through said plate, theangle-bar door frame above said heat-flues, and the car-rails enteringthrough the doorway over the heat-lines, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN \VILSON.

Vitnesses:

W. J. MORGAN, S. H. MORGAN.

